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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() 
  5. {
  6. 	size_t n,count=0;
  7. 	cin>>n;
  8. 	for(int direction=0,prev=0,curr;(n--)&&(cin>>curr);prev=curr)
  9. 	{
  10. 		if((prev!=curr)&&(direction!=(prev<curr)))
  11. 		{
  12. 			++count;
  13. 			direction=1-direction;
  14. 		}
  15. 	}
  16. 	cout<<count;
  17. 	return 0;
  18. }
Success #stdin #stdout 0s 4536KB
comments (?)
stdin
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7
3 7 11 11 6 2 4
stdout
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3
https://ideone.com/gjcpPk
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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